"have you known" or "do you know"

[edmondjanet]

One person told me, "I know you" then, Can I ask this,
How long have you known me? or
How long do you know me? Which one is correct?
Thank you.

 

[SirGod]

*Not a teacher

For how long do you know me?
For how long have you known me?

Both seem OK to me, but the first one seems more appropriate for you to use.

 

[5jj]

How long have you known me? :tick: or
How long do you know me? X

5

 

[freezeframe]

Can we bring up the phrase "stative verbs"? Or will this result in something horrible?

I have some Internet-forum trauma around it.